F.B.D.I.S.S.M - Flux.Boosted.Dual.Induction.Split.Spiral.Motor.

[Honk]

I have seen the video many times, and also your explanations, but there is a few holes in your explanations you haven't taken into account
(That's how I feel about it, anyway - so never mind ).

Perhaps, perhaps not. I have thought of this motor a lot. Time will tell.

There is no guarantee that the video is not a trick - I can see a distortion every same place of the stator magnet.
As it encrease the speed, the distortion is just moved to another position.
Look close and you'll see that the acceleration is also very sudden at the very same time this happens.
Well, so I assumed this video was a trick.

The video is no trick. What you see is just a video distortion. Look in your mailbox tomorrow. I have posted you proof.

Anyway, an array of equal magnets will distribute the magnetic field in 90 degrees across the length only in its middle,
and there will also bee the most attractive place to attract a smaller magnet.
The flux regardless of magnetic angle is however even through the whole magnet array but as the angle shifts,
the attractive force to another magnet will be less powerfull even if the flux density is the excact same all the way.
So that's why I asked.

Yes, you are right about the most flux being in the middle of the stator array, but you forget that the rotor magnets have no way
of getting near the stator in that area. So it dosen't matter in this case. The only way to seek the most flux is to rotate towards
the most narrow gap, and this gap is at the end of the stator magnets. The rotor magnet will not reach the same high flux levels
at the middle area. The gap to the wall is just to great. This is why it does seek to find the flux at the narrow end gap.
Because of the angled gap difference between the two sides of the rotor magnet there will always be a twist to the end.

It will be interesting to see your final product anyway. Good luck
Vidar

Thanks / Honk

[ecc]

Prices for magnets

A quote has come in from an Australian distributor. Prices are in Australian dollars.

DETAILS

Quantity      -   8   Units (Rotor)
Size         -   80mm x 38.1mm x 30mm
Shape         -   Block
Material      -   Neodymium Iron Boron
Grade         -   N45
Magnetized      -   Through the 38.1mm
Finish         -   Nickel Plated
G. S. T.       -   Not Included
Delivery      -   Not Included
-----------------------------------------------------------------
PRICE         -   $78.00 ea (Plus Delivery & G. S. T. )
-----------------------------------------------------------------


Quantity      -   150   Units (Stator)
Size         -   80mm x 30mm x 4mm
Shape         -   Block
Material      -   Neodymium Iron Boron
Grade         -   N45
Magnetized      -   Through the 30mm
Finish         -   Nickel Plated
G. S. T.       -   Not Included
Delivery      -   Not Included
-----------------------------------------------------------------
PRICE         -   $14.50.00 ea (Plus Delivery & G. S. T. )
-----------------------------------------------------------------

[Honk]

Wow, pretty expensive. That equals to $2450 US.

I hope my own magnet request comes out cheaper.
I'll get the price in grade N38, N45 and N50, perhaps this week.

I sent the request to both www.magnesy.eu and to www.magnet4less.com but only Magnesy have responded so far.
They'll get back to me soon. Just to be pricewise I guess I will have to get more quotes from several other suppliers.

Don't forget to keep an eye on the updated Drawing pack.
http://www.overunity.com/index.php/topic,3456.msg58338.html#msg58338

[ecc]

Yes I was shocked about the price, too. That supplier did know that his prices would be posted on an internet forum.
Perhaps it would be worthwile to approach the manufacturers directly to possibly reduce costs and as it seems that the rotor magnets are custom shaped direct contact with the manufacturer might lead to a better product faster.
The Australian supplier told me that machining neos would be hard to do if not impossible.

One manufacturer I discovered but have not approached so far is

[url http://www.magtech.com.hk/index_product.htm[/url]



On their rare earth neo page are additional buttons pointing to magnetization and dimension diagram pages.

[Honk]

I have now sent the magnet requests to a total of nine manufacturers, and also Magtech as you suggested.

www.magnesy.eu                <--- They will deliver the magnets for $1915 US (shipping and Vat included)
www.magnet4less.com        <--- No response so far
www.kjmagnetics.com         <--- No response so far
www.cy-magnetics.com       <--- No response so far
www.buymagnet.com          <--- They will deliver the magnets for $1328 US (shipping and Vat included)
www.magnetsales.co.uk      <--- They will deliver the magnets for $3405 US (shipping and Vat included)
www.supermagnete.de         <--- They could not make the magnets.
www.magtech.com.hk          <--- No response so far
www.ibsmagnet.com            <--- They were not interested in making the magnets.

I guess we have a winner. -> www.buymagnet.com
Now I just need to get the price on Supermalloy.

I don't think the machining should be that hard. It's standard procedure to machine neos (using the right tools) into the desired shape.

If any of you guys reading this know any good custom magnets suppliers, please tell me of those.